How to write special chars?

The Corebook Pro doesn’t have “<”, “>” and other important keys. I’m using Italian keyword (with silicon cover too). I tought to use ASCII codes… with other PCs I press on ALT and ASCII number. With Corebook doesn’t work. How can I write this special chars?

Hi !
I’ve libre office installed and made a document with speclals caracters. I need some of them too…!